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a 600 kg person running at an initial speed of 325 ms jumps onto a 120 kg cart that is initially at rest the person
a solenoid 30 cm long consists of 3921 loops of wire if the magnetic field inside the solenoid is 40 t what is the
a 10 n horizontal force f pushes a block weighing 90 n against a vertical wall the coefficient of static friction
a boy gets ready to slide down an icy hill with his sledassume that the friction from the ground is negligiblewhat
two conducting spheres are placed with their centers 0325 m apart one is given a charge of 110 nc and the other a
a cannonball is fired from a canon at an angle of 45 degrees to the horizontalthe cannonballs initial velocity is 40
two men lift a 45 kg block from the floor to a shelf 10 meter above the floor without accelerating the block how much
a 3600 kg truck is moving at a constant speed of 500 ms the coefficient of friction between the tires and the road is
wrongly called for a foul an angry basketball player throws the ball straight down to the floor if the ball bounces
two air-track gliders of equal mass are initially moving in the same direction along a straight line the rearmost
the escape speed of a particular planet with a radius of 7900e6 m is 14500 ms what is the mass of the
an initally stationary 15-kg crate of cheese wheels is pulled via a cable a distance d570m up a frictionless ramp to a
a solid sphere moment of inertia i25mr2 is rolling smoothly with a speed of 60ms pom a horizontal surface it then
a wheel has a constant angular acceleration deceleration of 50 rads2 the wheel was initially moving at 150 radsa how
the volume expansion coefficient for kerosene is 900 x 10-6 k if the kerosene was held inside a long thin metallic
a plank 200 cm thick and 137 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the
a block m 3 kg is sitting on a horizontal frictionless table a spring k 500 nm is mounted at the side of this block
a net force of 19 newtons is applied horizontally to a 10 kilogram block resting on a table what is the magnitude of
two masses are tied to a rope the first mass is attached to a spring that is then attached to the ground the rope is
a modern house is wired for 115 v and the current is limited by circuit breakers to a maximum of 135 a for the purpose
a bullet with a mass m 483 g and initial speed of 330 ms passes through a wheel which is initially at rest as in the
meteroids often move at high speeds relative to earth if meteroids approach earth closely enough to hit our atmosphere
a certain cablecar in san fransisco can stop in 10 sec upon the application of the brakes while traveling at full speed
a tire is filled with air at 15degc to a gauge pressure of205kpa if the tire reaches a temperature of39degc what
a cubic box of volume42multiplied by10-2m3is filled with air at atmospheric pressure at 20degc the box is closed and